🔩 Stage 8 - 8916 MOPAR Hemi V8 Header Bolt Kit - Complete Set of 17 Pieces - 8mm 1.25x25mm Bolts - 6 Point DHH Review

Bolts received only, no other hardware included. Bolts were just right for a 5.7 liter Hemi but no hardware I had to pay the mechanic extra money to fit the headers.The bolts arrived as specified but as this was an incomplete set it didn't matter when they arrived.I planned on replacing the exhaust system knowing that I had everything I needed to get the job done.Slightly annoying that the header bolts now have to be tightened every few months.

Really good fits. The design makes them a little tricky to install on manifolds, but they work well. My short JBA headers for my Ram had a set of locks and clips that I couldn't install due to the primary bolting up and back towards the cat. This is not due to the hardware, but to the design of the header. I hope it doesn't drip. The screw heads are 11mm in diameter so make sure you have an 11mm wrench. Even when installing short connectors, a 1/4" universal joint adapter and extension kit will

2016 SRT 392 Challenger. I've used them before with mixed results. They work. Here's what you need to do to be successful. Once installed, do not install the locking tabs and e-clip immediately afterwards. Start the car and let it run long enough to reach normal operating temperature. Let cool and repeat. Check for exhaust leaks every time. If you hear a ticking noise from either motor then you have a leak. Tighten the screws after cooling. Repeat the process until all leaks are eliminated…